The Environmental Protection Agency (EPA) has issued new guidance regarding diesel exhaust fluid (DEF) systems in diesel engines that cause trucks and tractors to enter "limp mode" when DEF levels are ...

You can shovel snow out of the driveway all you want, but if your vehicle isn't up to the task of living somewhere that gets particularly cold in the winter, you'll still find yourself stuck at home.

PARIS, July 24 (Reuters) - Carmaker Stellantis plans to stop diesel engine production at its Douvrin plant, in northern France, in November, a company spokesperson said on Wednesday. Stellantis also ...

Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...